Compressor for demountable rims.



I H. E. LEE; COMPRESSOFLWR DEMOUNTABLE RIMS.

APPLICATION FILED DEC-1.19M.

Ll$fifi5w PatentedJune 1915.

2 SHEETS i.

Herr ELee H. E. LEE;

COMPRESSOR FOR DEMOUNTABLE RIMS.

' APPLICATION FILED DEC. I, 1914.

l m fifififl PatentedJune 29, 1915,

SHEET 2.

2 SHEETS- INVENTOR '3 Marry E. Lee

E. LEE, Q3? GRAITTJVEH'W,

GQEFE'PBESSQR FOE DEMGUNTABLE Application filed Tileccmber 1, 19M.

and State of @hio, have invented new and I Improved Compressor forDemo-unable Rims, of which. followiiiig is a fall, clear, and exactdescription.

My invention relates to means for COTfl pressing demonntahle rims in theremoval of the same from a tire.

The prime object of my invention is to provide for the use of a lei erwhereby to conveniently and expeditiously the meeting ends of thedenioiintable rim and draw the separated ends into overlapped position,thereby compressing or constricting the rim. In connection. with theclamp ments to be engaged by the lever I. provide latch means to edectlatched engagement between the elements when the rim is compressed,wherehy to hold the latter against the tendency to expand to its normalform.

The nature of the invention and the distinctive features thereof will beclear from the specific description following:

Reference is had to the accompanying drawings forming part of thisspecification,

in which similareharacters of reference 1ndicate corresponding parts inall the views, and in. which: I

Figure 1 is a side elevation of my improvedodevice showing the'sameapplied to a demountable rim, with the latter in compressed orconstricted form; Fig. 2 is a longitiidinal vertical section of myimproved device on an enlarged scale, portions of the demountable rimbeing shown in the normal expanded position of the rim, the sectionbeing taken on the line 2-2, Fig. Fig. 3 is a view similar to Fig. 2,,with the rim compressed; Fig. 4 is a cross section on the line d-4 Fig.2; and Fig. 5 is a plan view of my improved device as applied.

My invention is shown as applied to a demountahle rim A in the form of asplit ring, the ring being conventionally shown. In. carrying out theinvention 1 provide clamp jaws 10, arranged to grip one end of the rimA, the preferred form of jaws locing illustrated, and comp 'ising Yinturned clamping ends 11 to engage the outside of the rim, anddesirably provided. with gripping teeth 11 he respective jaws 10, l0 aremounted on a shaft 12,-on one end of Specification of Letters Patent.

Patented inns 2t which is mounted a hand wheel 18 for turning the shaft.One end of the shaft 12 is threaded as at 19, and recei es a nut isoutside oi the adjacent jaw I" "r1 Between the opposite jaw 10 and thehand wheel 13 a spacing sleeve may be p' *idcd on the 12, therebyproviding clearance for the movement the turning the wheel 13.

To give guided movement to the jaws 10,

1.0 a rod 16 is provided extending. throogh the opposite and receivingnuts l? on;- side of the clamp jaw. 'ii. bail i8 is arranged inconnection with the clamp composed of jaws l0, l0, and is mounted toswing. in the illustrated construction the bail 18 has its ends 19 bentaround the shaft 12 so as to swing on the latter. The hail is adapted toreceive an actuating lever, as hereinafter explained.

A separate clamp composed of opposite jaws 20, 20 is provided forgripping" the opposed end of the rim A, and said jaws are provided withgripping members similar to the members 11 and provided with teeth 21.integral with one jaw 20 is a cross bar 22 having means at its ends toengage the opposite jaw. The said engaging means in the present examplecomprises pins 28, secured to the outer ends of which is a plate 24;spaced from the end of the cross bar 22. T he pins 23 extend through theadjacent jaw 20, so that the latter has guided sliding movement on saidpins. In order to actuate the jaws 20, 20 the same are mounted on ashaft 25, one end 01'? which mounts a hand "wheel 26. On the oppositethreaded end 25 of the shaft 25 a shaft 27 is provided. Oct side of theadjacent jaw 20 between the j aw 20 and. the hand wheel 26, a spacingsleeve 28 is provided.

The j aw 10" of one clamp has threaded engagement with the threads 12 ofthe shaft 12, and the j aw 20- has threaded engagement with the adjacentthreaded end of the shaft 25. Thus the turning of the shafts l2 and willclose or open the jaws of the respective clamps. v

A swinging bail 29 similar to the bail 18 is provided in connection withthe clamps 20, 20. said bail 29 having its ends 30 bent around the shaftto swing on the latter. The hail. 23 is so positioned that it will eX-tend toward the bail 18 of the opposite clamp. ".Tae lever is adapted toengage from the wheel the lever 32 having been then engaged with therespective bails,.as illustrated in Fig. 2, the first movement of thelever will cause the meeting ends of the rim to slip by each other andlaterally displace the said meeting ends, whereby to permit the ends ofthe 'rim to be overlapped in constricting or compressing the rim. Thecontinued movement of the lever will draw the respective bails and theirclamps toward each other to the position indicated in Fig. 1.

In order to effect latched engagement be tween the clamps and hold thesame against separation when the clamps have been drawn toward eachother by the movement of the lever, I provide a latch 35 which ispivoted between its ends on a pin 36 provided on a hanger bracket 37which is secured to the cross bar 22 by a rivet 38, or equivalent means.Thelatch 35 is thus disposed be.- tween the jaws 20, 20 adjacent to thebail 29, and has a hooked end 39 disposed in the direction of theopposite bail 18. The arrangement is such that as the lever 32 carriesthe bail 18 towar d the opposite clamp, the cross bar 18 of said bail 18will be engaged by the hook 39of the latch 35. Thus the clamps are heldagainst separation and the rim maintained in the constricted form. Thelatch 35 is under the influence of a spring 40, here shown as coiledabout the projecting end of the pin 36. One end 41 of the spring bearsagainst the bracket 37, while the opposite end 42 extends through thelatch 35 atthe opposite side of the pin 36 from the hook 39. Thus thetendency of the spring 40 is to maintain the latch 39 in position to beengaged by the cross bar 18 of the bail 18.

Conventionally indicated in the drawing is the air tube B of the tirevalve projecting at the inside of the rim A. In connection with one ofthe clamps I provide an element to be engaged by the hooked end 33 ofthe lever 32, whereby pressure will be exerted againstthe end of the airtube B as the lever brings the clamps toward each other. The pressuredevice for the valve B may consist of an element 43 formed of wirereturn bent at its center, the ends 44 being bent around the shaft 25 ofthe clamp 20,

20 to swing on said shaft. At the bend of the wire 43 the same is formedinto a hook 45, the bill 46 of which is adapted to hook over the tube Bwhile the shank of the hook 45 bears on the end of the said tube. Theelement 43 is located to extend beneath and beyond the cross bar 29 ofthe bail 29, and

clamps toward each other, the hook 33 of the lever will bear down on theelement 43 and thus exert pressure on the end of the valve It will thusbe seen that the improved compressor, in separating a tire from ademountahle rim, simultaneously with the compressing of the rim,releases the air from the tire and presses the valve tube outwardly,whereby to facilitate disengagement of the valve from the compressedrim.

In the preferred form the lever 32 is forked as best seen in Fig. 5, inorder to provide two hooks 33.

Referring more particularly to Figs. 2 and 3, it will be seen that thereis a depression 47in the guide rods 16 whereby to assist in engaging thelever 32 with the respective bails 18 and 29.

Having thus described my invention, what I claim as new and desire to.ecure by Let- 4 ters Patent, is:

1. In a device of the character described, separate clamps to gripopposed members to be moved toward each other, actuating means to drawsaid clamps toward each other, the clamps having elements to be engagedby said actuating means, and latch means to effect latched engagementbetween the clamps and prevent separation thereof when the actuatingmeans have drawn the clamps toward each other, said latch meanscomprising mating elements on the respective clamps engageable by amovement of the actuating means.

2. In a device of the character described, separate clamps adapted toengage two opposed members to draw the latter toward each other, a swingbail on each clamp adapted to receive an actuating device to draw theclamps toward each other, and a latch on one clamp movable into latchedengagement with the bail of the other clamp.

3. In a device of the character. described, separate clamps adapted toengage two 0pposed members to draw the latter toward each other, a swingbail on one clamp disposed toward. the second clamp, a swing bail onsaid second clamp and adapted to overlap the first bail when the clampsare moved toward each other, a latch on the second clamp adjacent thebail thereof, and having a hook to engage the opposite bail. and a leveradapted to engage said bails to draw the clamps toward each other andengage the one bail with the said latch.

4. In a device of the character described, separate clamps adapted togrip the adjacent ends of the split 'demountable rim, an element on oneclamp to bear on the inner end of a valve tube at the inside of the rim,a lever to draw the clamps toward each other,

I as the lever 32 is swung to draw the respective I and members on therespective clamps to engage the lever, one of said members beingdisposed adjacent to the element that bears on he valve tube to disposethe lever adjacent to said element.

5. In a device of the character discribed,

separate clamps adapted to grip the adjacent ends ofthe splitdemountable rim, means whereby to draw the clamps toward each other, andmeans to exert displacing pressure on the valve at the inside of the rimas the clamps approach each other.

(3. In a device of the character described, separate clamps adapted togrip the adjacent ends of the split demountable rim, each clamp com'irising jaws, a shaft on which the jaws are mounted, means. to turn theshafts to giv ative movement to the jaws, a guide rod extending betweenthe jaws of one clamp to guide the jaws, one jaw of the other clamphaving an integral top bar slidably engaging the opposite jaw, and meansthe respective jaws disposed toward each 30 other, a lever to draw theclamps toward each other, a latch on one clamp adjacent to the bailthereof, said latch being pivoted between its ends and having a hook toengage the bail of theopposite clamp, and a spring acting on said latchto maintain it in position to be engaged by the said bail.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HARRY E. LEE.

\Vitnesses J 01m A". HOLLIDAY, Geo. D. HARVEY.

